# List of county routes in Hunterdon County, New Jersey

The following is a list of county routes in Hunterdon County in the U.S. state of New Jersey. For more information on the county route system in New Jersey as a whole, including its history, see County routes in New Jersey.

## 500-series county routes

In addition to those listed below, the following 500-series county routes serve Hunterdon County:
* CR 512, CR 513, CR 514, CR 517, CR 518, CR 519, CR 523, CR 579

## Other county routes

| Route | Length (mi) | Length (km) | From | Via | To | Notes |
| CR 600 | 0.57 | 0.92 | Route 31 in Raritan Township | Wescott Drive | CR 612 in Raritan Township | |
| CR 601 | 3.65 | 5.87 | CR 518 in West Amwell | Mount Airy-Harbourton Road, Mount Airy Village Road | Route 179 in West Amwell | Partially on the Mercer–Hunterdon county line |
| CR 602 | 6.31 | 10.15 | Route 179 in East Amwell | Wertsville Road | Wertsville Road at the Somerset County line in East Amwell | |
| CR 603 | 0.54 | 0.87 | Route 179 in West Amwell | Village Road | CR 601 in West Amwell | Maintained by West Amwell since 1981 |
| CR 603 | 1.26 | 2.03 | Shurts Road at the Warren County line in Bethlehem Township | Valley Road | Main Street (CR 645) in Hampton | Decommissioned in 1981 |
| CR 604 | 7.27 | 11.70 | CR 519 in Delaware Township | Rosemont-Ringoes Road | CR 579 in East Amwell | |
| CR 605 | 3.60 | 5.79 | Route 179 in West Amwell | Queen Road, Sand Ridge-Mount Airy Road, Cemetery Road | CR 523 in Delaware Township | |
| CR 606 | 0.4 | 0.6 | Old Croton Road (CR 608) in Raritan Township | Capner Street Extension | Capner Street at the Raritan Township–Flemington border | Decommissioned in 1981 |
| CR 607 | 2.08 | 3.35 | Hopewell-Wertsvlle Road at the Mercer County line in East Amwell | Rileyville Road | CR 602 in East Amwell | |
| CR 608 | 3.95 | 6.36 | Route 12 in Delaware Township | Old Croton Road | Capner Street Extension (CR 606)/Dayton Road in Raritan Township | Decommissioned in 1981 |
| CR 609 | 2.31 | 3.72 | CR 602 in East Amwell | Manners Road | CR 514 in East Amwell | |
| CR 610 | 0.82 | 1.32 | Uhlerstown–Frenchtown Bridge / Front Street in Frenchtown | Bridge Street, Race Street, Kingwood Avenue | Route 12 / Horseshoe Bend Road in Frenchtown | County-maintained portion of Route 12 |
| CR 611 | 0.80 | 1.29 | US 202/Route 31 in Raritan Township | South Main Street | Route 12 in Flemington | |
| CR 612 | 1.93 | 3.11 | CR 617 in Raritan Township | Sand Hill Road, Bartles Corner Road | CR 523 in Raritan Township | |
| CR 613 | 3.68 | 5.92 | CR 514 in Raritan Township | Old York Road, Main Street | US 202 in Readington | Partially former CR 514 Spur |
| CR 614 | 7.70 | 12.39 | CR 519 in Holland Township | Spring Mills Road, Little York-Mt. Pleasant Road, Little York-Pattenburg Road, Pattenburg Road | I-78/US 22 / Route 173 in Union Township | |
| CR 615 | 5.24 | 8.43 | Route 12 in Kingwood Township | Pittstown Road | CR 579 in Franklin Township | |
| CR 616 | 2.08 | 3.35 | CR 579 in Franklin Township | Quakertown Road | CR 617 in Franklin Township | |
| CR 617 | 8.72 | 14.03 | Flemington border in Raritan Township | Thatcher Hill Road, Klinesville Road, Cherryville Road, Sidney Road | CR 513 in Union Township | |
| CR 618 | 0.50 | 0.80 | Route 31 in Clinton Township | Stanton Grange Road | CR 629 in Clinton Township | |
| CR 619 | 3.05 | 4.91 | 7th Street in Frenchtown | Milford-Frenchtown Road | CR 519 in Milford | |
| CR 620 | 4.22 | 6.79 | CR 523 in Readington | East Dreahook Road, Readington Road | CR 637 at the Somerset County line in Readington | |
| CR 621 | 0.74 | 1.19 | CR 629 in Clinton Township | Round Valley Road | US 22 in Clinton Township | Designated by the New Jersey Department of Transportation as CR 751 |
| CR 621 | 1.62 | 2.61 | Quakertown Road (CR 616) in Franklin Township | Sidney Road | Cherryville Road / Sidney Road (CR 617) in Franklin Township | Decommissioned in 1981 |
| CR 623 | 2.50 | 4.02 | Regional Road/Mitchell Lane on the Clinton/Clinton Township border | Allerton Road, Wellington Drive, Hamden Road | Route 31 in Clinton Township | |
| CR 624 | 1.28 | 2.06 | US 22 / CR 523 in Readington | Old Highway 28 | US 22 in Readington | Decommissioned in 1981 |
| CR 625 | 5.04 | 8.11 | CR 513 in Alexandria Township | Mechlin Corner Road | Route 173 in Union Township | |
| CR 626 | 1.21 | 1.95 | Greyrock Road in Annandale | Beaver Avenue | Ramp from US 22 westbound in Annandale | |
| CR 627 | 6.05 | 9.74 | Milford border in Holland Township | Riegelsville-Milford Road | CR 627 at Warren County line in Holland Township | |
| CR 628 | 5.25 | 8.45 | Route 31 in Glen Gardner | Main Street, Hill Road, Bunnvale Road | CR 513 in Lebanon Township | |
| CR 629 | 12.71 | 20.45 | CR 629 at Somerset County line in Readington | Pleasant Run Road, Stanton Road, Stanton-Lebanon Road | Main Street in Lebanon | Maintained by Lebanon Borough inside borough limits |
| CR 631 | 1.73 | 2.78 | CR 519 on the Alexandria/Holland township line | Little York-Mount Pleasant Road | CR 614 in Holland Township | |
| CR 633 | 0.69 | 1.11 | Route 31 in Clinton Township | Old Allerton Road | CR 626 in Annandale | |
| CR 635 | 6.31 | 10.15 | Route 173 in Union Township | Charlestown Road, New Street, Main Street | Route 31 in Glen Gardner | |
| CR 637 | 0.48 | 0.77 | CR 620/CR 637 in Readington Township | Readington Road | CR 637 / Baird Road in Readington | Travels along the Somerset–Hunterdon county line |
| CR 639 | 5.73 | 9.22 | US 22 in Lebanon | Cokesbury Road, River Road | High Bridge line in Clinton Township | |
| CR 641 | 1.32 | 2.12 | CR 626 in Clinton Township | West Street, Dewey Avenue | High Bridge line in Clinton Township | |
| CR 643 | 2.81 | 4.52 | Route 173 in Bethlehem Township | West Portal-Asbury Road, Asbury Road | CR 643 at the Warren County line Bethlehem Township | |
| CR 645 | 3.45 | 5.55 | Route 31 in Hampton | Musconecong River Road | Butler Park Road in Lebanon Township | Formerly extended along Main Street in Hampton and Glen Gardner until 1981 |
| CR 647 | 0.61 | 1.0 | Route 31 in Flemington | Flemington Junction Road | CR 523 in Raritan Township | |
| CR 649 | 0.25 | 0.40 | Old York Road at the Lambertville–West Amwell border | Old York Road | Route 179 in West Amwell | Decommissioned in 1981 |
| CR 650 | 2.44 | 3.93 | Route 31 in Flemington | Vorhees Corner Road | CR 613 in Raritan Township | Formerly CR 514 Spur |
| CR 651 | 4.53 | 7.29 | Route 29 in Kingwood Township | Byram-Kingwood Road | CR 519 in Kingwood Township | Formerly CR 519 Spur |
| CR 652 | 0.17 | 0.27 | CR 600 in Raritan Township | Gauntt Road | Route 31 in Raritan Township | |